Timber-manipulating mechanism



a 13 1924. M y w. s. HAGMAIER TIMBER MANIPULATING MECHANISM Filed March18.

Patented May 13, 1924.

UNITED STATES PATENT WI Ie AM G;- IiAGME IEEQ W klfi WIQQQ 1M, Asslemon'J2o ALL s-crumqmns MANUFAQTURING COIMRANY, 0E QEL WABE,

wigmgee, waseonsm, A coeeoeemon or M E -114N 21 se -"me EEQHA I MApplication filed March I8, seri gl liq, Q QJQ Q,

To all whom it may C07Z06WL.

e it known that WILLIAM G. HAGMAIER, a citizen of the United States,residing at West Allis, in the county of Milwaukeeand [State ofWisconsin, has invented a certain new and useful Improvement in Timber-Ma nipuluting lifechanism, of which the folloWIn is a specification.

This invention relates in general to 1m-r l0'p1'over nents in theconstruction and operation of sawmill machinery, and relates morespecifically to im roved mechanism for loading and adjust'ng timber insawmills. An object of the invention is to provide simple and eflicienttimber loading, unload:

ing'andadjusting mechanism. Another 0bjee't of the invention is toprovide improved mechanism which is especially adapted for losidiug andadj'u ting timber'u on sawm ll carriages. A fui'tl erobject oft einvention is to provide a combined ni ger be! nd' push arni structurefor sztwmlills, which is simple and compact in construction andelficient in operation. Satil-l enother object of the invention is'toprovide an in; roved timbei" ed-justing arm Which i's sxvi'ngeble aboutan axis and which is readily removable from its support. Another objectof the invention' is'to provide a stop late for nig er bars, which maybejlocatecf near the effective partof the her and above the ush armrockshaft which is located in pro imityto the ni er bar. These'tndothei'objects and ad van 'agesjof the present invention will be apparent fromthelollowing descri tiqn A clear conce tion of an emloodl ment of theinvention and of the operetion of meehanism constructed in accordance threwith, may be had by referring mum drawing accompanying and forming apart of this specification, in Which like'reference characters desi matethe same orsimiler parts in the verious views.

Fi 1 is a top view of a combined nig elf bar a d push arm mechenism forsa vvuti L's.

F e- Q a part i al side elevates et a com'lpined m er bar and push grinmeek anism for sawmills; showing a sewmill'cerrie ie and a piece oftimber'in operative re letl p thereto.

is 9411?? ed ef e mili y ide elevation of, a ombi l ig fiber and P s 1 mnisrii fe -,aiw filfis-v I 4 is an enlarge fragmentary side 65 eleveiion of an improved push arm.

F g.- 5 s an enlw" e c nt al v rtical jqrk h iig 0 1p in" $0 7 o n ctingh W Y. m the o w The t ber adjus ng meehee m 8: s es. 11. F ee 2 andompiles in e re'i i ori nta ir -P e o k shitft 2i Pr se iil t a in sassoed wi h he 5. @111 e d of en. A r s v a; fur' ate ush arm latteched toand stvinggtb'e e r ck h ri 2, 3, an op rat time d red joca e p s n 7 asi ,at'eble Sui Po t d, n a ings 15 e sec afie w th t ee end f 6 9A frameand, eo pereti jg it he P ssing tr m t 9. e pus arm en twi lgt t niggerban 5 mov able lateral y wit in he bifi rcation of th p s 7 2 n n. 'mimy s p ec 0% h nker ,9 r ting when th carri ge 1 i le i mechanism orcylind r 2Q ammal t ng the s g -e b l 5.

1 h; lilprii zontal roci shaft comprises two 1i h$.. .t$e ti 9 t p e n Sf which extend int 5116 5" u i n 'if tlie push e 71? 4 end. are ta s-.1xi fleet;- ttou; lh g lemit or se ler 1.0, s. we in p e .1 ce t d is r hOf he he se t ei s y m an a v n- 11S 10 being fi ikflmi 26, t e ee i.

n on PABGQ and e se I fit ing he prong o he push shalt ect ns 2, 3, Th

rm 4 re formed s lii ti'e s s in .F g- 4 th reces 2% wher b t e rush armrongs, ar adap ed o be shfil l e li y of en We gwe ment wi h thc shaltse e s 2 3 15mins indecent t and, hstween the col l r rs 10. The pushe111} pr. 1 58 are g dilx at s leesi t9,- he adja ent alers 1 y m ss fbel s Pa ing time and for arm 4. is p ovid d ith. lat rally pmjeetip tm'- je i Wbieh a e summed Li ith: ar ng .5 a sqt ai fl with. newer m 015th A frees Meeting id Lb; reciprocatng the P l7 w l' the lind r 6 ma eadm tt d. 9 and ex meted f om. i e cyr fle? throng g pih th idmi si. i Wxhar s q'f't ii fluid ing meg d by mean 'qf e lve mechanism 0 s id, vectuating nnecti i s The nigger bar 5 is vertically and lg tep 113,eeiproseble y main if the w ue i i mechanism 22 s a y ll mewe mim The an5 i w lgfi 1!; W i the bif fetion of the :irm & and across the axis 0?the The ush erm actuating cylr'n rock shaft sections 2, 3. A stop plate9 located above the axis of the rock shaft and closely adjacent to thecarriage 17, is provided at its forward face with a front stop plate 11, and at its rear face with a rear stop plate 13, these stop platesbeing interconnected by means of bolts 23, a reaction plate 12, andsprings 11, in such a manner that the lateral movement of the niggerlHl-l 5 is cushioned in both directions. The rock shaft bearing caps 27are located in recesses formed in the stop plates9 and coact with theextreme inner ends of the shaft sections 2, 3. The carriage 17 ismovable past the push arm 4: and niggerbar 5 in a well known manner, andis adapted to support a piece of timber such as the log 19 which isnormally held in position upon the carriage by means of grippingmechanism 18.

The floor of the carriage 17 is located in approximately the samehorizontal plane as that of the stationary logdeck or timber supportingmeans from which the logs are delivered to the carriage. The axis. ofthe rock shaft 3 is preferably located some; distance below the logsupporting surface of the deck and as near to the carriage 17 aspossible, in order to permit the oscillating push arm 4 to effectivelyurge the logs resting upon the deck alongthe upper surface thereof.

During normal operation of the device, the push arm 4 may be oscillatedabout the rock shaft 2, 3 to convey logs from a suitable skidway ontothe carriage 17 by admitting fluid under pressure to the actuatingcylinder 6. After a piece of timber 19 has been properly positioned uponthe carriage 17, the push arm 4 is swung back to the positionillustrated in Figs. 1 and 2 by admitting fluid under pressure to thecylinder 6. If

it is desired to adjust the timber 19 upon the carriage 17 suchadjustment may be effected either by means of the push arm 4 and othermechanism carried by the rock shaft 2, 3, or by means of the nigger bar5 which may be manipulated to cause the teeth thereof to engage theperiphery of the timber 19 and to make the desired adjustment. Duringsuch manipulation of the nigger bar 5, the bar may be swung laterally,that is fore and aft, within the bifurcation of the push arm 4, theforward and rearward movement of the bar 5 being cushioned by thesprings 11 mounted upon the stop plate 9. When the timber 19 has beenproperly adjusted on the carriage, the nigger bar 5 and the push arm 4,may be positioned as indicated in the drawings, thereby permitting freemovement of the carriage 17 past the timber adjusting mechanism.

It will be noted that by locating the nigger bar stop plate9 and thefront and rear stop plates 14, 13 above the axis of the rock shaft 2 3,movement of the bar 5 is restrained in. close proximity to the effectiveportion of the bar 5 thus producing maximum stability of the bar 5 whilein oper ation. The stop plate 9 also protects the bearin caps 27 of therock shaft sections 2, 3, which caps are located directly adjacent tothe prongs and within the bifurcation of the push arm 4. The push arm 4:may be conveniently and rapidly removed from the rock shaft sections 2,3 by removing the clamping bolts from the holes 25 and withdrawing thearm Liaterally away from the rock shaft sections. The entire structureis compact and rugged thus adaptingthe same to the service required ofsuch apparatus.

It should be understood that it is not desired to limit the presentinvention to the exact details of construction and of operation hereinshown and described for various modifications within the scope of theclaims may occur to persons skilled in theart.

It is claimed and desired to secure by Letters Patent:

1. In combination, means roviding a timber support, a timber ad ustingarm swingable about a ivot located below said support, a timber ajusting bar movable adjacent to said arm andabove said support, andmeans for limiting the movement of said bar, said movement limitingmeansbeing located in proximity to said support and above the .pivot ofsaid arm.

2. In combination, means roviding a timber support, a bifurcated t mberadjusting arm swingable about. a pivot located below said support, atimber adjusting bar movable Within thebifurcation of said arm and abovesaid support, and means for limiting the movement of said bar, saidmovement imiting means being located in proximity to said support andabove the pivot of said arm.

3. In combination, means providing a timber support, a timber adjustingarm swingable upwardly about a horizontal pivot located belowsaidsupport, an upright timber adjusting bar movable laterally adjacent tosaid arm and above said support, and means foryliniiting the lateralmovement ofsaid bar, said movement limiting means being located abovethe pivot of said arm and below, said support. i

4. In combination, means providing a timber support, a bifurcated timberadjusting arm swingable about a horizontal pivot located below saidsupport, an u right timber ad'ustin bar movable lateral y within the biurcation of said arm and above said sup port, and means for limiting thelateral movement of said bar, said movement limiting means bein locatedabove the pivot of said arm and be ow said support.

5. In combination, means providing a timber support, a timberadjustingarm, a rock shaft located below said support and forming a horizontalpivot about which said arm is swing-able, a timber adjusting bar movablein proximity to said rock shaft and above said support, and means forlimiting the movement of said bar, said movement imiting means beinglocated above said rock shaft and below said support.

6. In combination, means providing a timbcr support, a bifurcated timberadjusting arm, a rock shaft interrupted at the bifurcation of said barand forming a pivot located below said support about which said arm isswingable, a timber adjusting bar movable in the bifurcation of said armand across the axis of said shaft, and means for limiting the movementof said bar, said movement limiting means being located in proximity tosaid support and above the pivot of said arm.

7. In combination, means providing a timher support, a bifurcated pusharm, a rock shaft interrupted at the bifurcation of said arm and forminga horizontal pivot located below said support about which said arm isswingable, an upright nigger bar movable within the bifurcation of saidarm and across the axis of said shaft, and a stop plate for limiting themovement of said bar, said stop plate being located above said rockshaft and below said support.

8. In combination, means providing a timber support, a bifurcated timberadjustin arm, a pivot shaft for said arm interrupts at the bifurcationthereof, said shaft being located below said support and having portionsextending into said arm bifurcation, a timber adjusting bar movablebetween said shaft portions, and a stop plate for said bar locateddirectly above and below said support.

9. In combination, a bifurcated timber adjusting arm, a rock shaftforming a pivot about which said arm is swingable, a timber adjustingbar located between the bifurcations of said arm, and means foreffecting removal of said arm from said rock shaft by moving said armtransversely of the axis of said shaft and laterally away from said bar.

10. In combination, push arm, a rock shaft forming a pivot for said arm,a bifurcated member secured to said rock shaft and to said arm, a timberadjusting bar located between the bifurcations of said arm, said armbeing laterally removable from said shaft and away from said bar uponremoval of the securing means between said arm and said member.

11. In combination, a rock shaft, an arm having a forked end engagingsaid shaft, a timber adjusting bar located between the prongs of saidarm, and means for securing said arm to said shaft, said arm beingfreely removable laterally of the shaft axis and of said bar uponrelease of said securing means.

12. In combination, a pair of alined shafts having adjacent ends spacedapart, a collar embracing each of said shaft ends, a bar movable betweensaid collars, and a bifurcated arm connecting said collars, said armbeing laterally removable from said shaft and away from said bar whendisconnected from said collars.

In testimony whereof, the signature of the inventor is affixed hereto.

WILLIAM G. HAGMAIER.

said shaft portions

